Answer two questions about Systems A and B: System A:
8x−3y=0
2x+7y=3​
System B:
​8x−3y=0
8x+28y=12​
1) How can we get System B from System A?
Choose 1
A: Replace one equation with a multiple of itself
B: Replace one equation with a multiple of the other equation
C: Replace one equation with itself where the same quantity is added to both sides
D: Replace one equation with itself where a quantity is added to only one side

2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?
Choose 1
A: Yes
B: No

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)